Locality: Shijiangshan mine area, Chifeng city, Inner mongolia, China.
This is the Datolite specimen, from Inner Mongolia, China. Datolite is the mineral contain elements: Si, B, Ca, O, H. Mohs hardness is 5-5.5. This specimen wide around 19cm, many small columnar Datolite crystals has sharp geometric edges, bright luster, in pale green color, densely on the matrix. Classic find from this locality!